[frameworks-solid] [Bug 467751] Unmounting certain SD cards can triggers an immediate remount when using "automount on attach" setting
https://bugs.kde.org/show_bug.cgi?id=467751 --- Comment #12 from David Edmundson --- Git commit 41eaa14d3375e303e68e0d2f39090f5ed4f48c82 by David Edmundson. Committed on 21/06/2023 at 10:45. Pushed by davidedmundson into branch 'master'. Expose StorageDevice timeDetected/timeMediaDetected For automounting purposes it's useful to know when a drive appeared in relation to when StorageVolumes appear. Rather than adding tracking in front-end code we can make use of udisk's existing information. M +10 -0src/solid/devices/backends/fakehw/fakestorage.cpp M +3-0src/solid/devices/backends/fakehw/fakestorage.h M +20 -0src/solid/devices/backends/udisks2/udisksstoragedrive.cpp M +3-0src/solid/devices/backends/udisks2/udisksstoragedrive.h M +12 -0src/solid/devices/frontend/storagedrive.cpp M +21 -0src/solid/devices/frontend/storagedrive.h M +10 -0src/solid/devices/ifaces/storagedrive.cpp M +12 -0src/solid/devices/ifaces/storagedrive.h https://invent.kde.org/frameworks/solid/-/commit/41eaa14d3375e303e68e0d2f39090f5ed4f48c82 -- You are receiving this mail because: You are watching all bug changes.
[frameworks-solid] [Bug 467751] Unmounting certain SD cards can triggers an immediate remount when using "automount on attach" setting
https://bugs.kde.org/show_bug.cgi?id=467751 --- Comment #11 from Alberto Garcia --- There's one more thing to take into account with the "5 seconds since plugged" heuristic: the case when the volume was present at coldplug (i.e. it was already there when the session started). Related links for the GNOME implementation: https://gitlab.gnome.org/GNOME/gvfs/-/commit/e30a67f3215d829e95ee7e358c67af7d67635fe8 https://bugzilla.redhat.com/show_bug.cgi?id=813069 -- You are receiving this mail because: You are watching all bug changes.
[frameworks-solid] [Bug 467751] Unmounting certain SD cards can triggers an immediate remount when using "automount on attach" setting
https://bugs.kde.org/show_bug.cgi?id=467751 --- Comment #10 from Alberto Garcia --- (In reply to Stefan Brüns from comment #9) > According to the strace output, the drive supports none of the four > attempted methods of eject, i.e. the ioctl's 'CDROM_LOCKDOOR', 'SG_IO(...)', > 'FDEJECT' and 'MTIOCTOP'. FWIW the same happens with QEMU's virtual SD card reader (the strace output I attached earlier is from actual hardware). -- You are receiving this mail because: You are watching all bug changes.
[frameworks-solid] [Bug 467751] Unmounting certain SD cards can triggers an immediate remount when using "automount on attach" setting
https://bugs.kde.org/show_bug.cgi?id=467751 --- Comment #9 from Stefan Brüns --- According to the strace output, the drive supports none of the four attempted methods of eject, i.e. the ioctl's 'CDROM_LOCKDOOR', 'SG_IO(...)', 'FDEJECT' and 'MTIOCTOP'. I can confirm the behavior by issuing e.g. 'eject -f ...', as FDEJECT is not supported by my card reader (it supports the SCSI ioctl) I also get the UDEV REMOVED/CHANGED/ADDED sequence. -- You are receiving this mail because: You are watching all bug changes.
[frameworks-solid] [Bug 467751] Unmounting certain SD cards can triggers an immediate remount when using "automount on attach" setting
https://bugs.kde.org/show_bug.cgi?id=467751 --- Comment #8 from Alberto Garcia --- Created attachment 157742 --> https://bugs.kde.org/attachment.cgi?id=157742=edit strace output The strace output is attached. Here's the output of the eject and monitor commands: # /usr/bin/eject /dev/mmcblk0; echo $? eject: unable to eject 1 # udisksctl monitor Monitoring the udisks daemon. Press Ctrl+C to exit. 15:43:49.633: The udisks-daemon is running (name-owner :1.29). 15:43:50.504: Removed /org/freedesktop/UDisks2/block_devices/mmcblk0p1 15:43:50.538: /org/freedesktop/UDisks2/block_devices/mmcblk0: org.freedesktop.UDisks2.PartitionTable: Properties Changed Partitions: 15:43:50.629: Added /org/freedesktop/UDisks2/block_devices/mmcblk0p1 org.freedesktop.UDisks2.Block: Configuration: [] CryptoBackingDevice:'/' Device: /dev/mmcblk0p1 DeviceNumber: 45825 Drive: '/org/freedesktop/UDisks2/drives/SL16G_0x8c9ed258' HintAuto: true HintIconName: HintIgnore: false HintName: HintPartitionable: true HintSymbolicIconName: HintSystem: false Id: by-uuid-9019398f-1e38-4f69-bca4-6feb56d98ed7 IdLabel:SD_CARD IdType: ext4 IdUUID: 9019398f-1e38-4f69-bca4-6feb56d98ed7 IdUsage:filesystem IdVersion: 1.0 MDRaid: '/' MDRaidMember: '/' PreferredDevice:/dev/mmcblk0p1 ReadOnly: false Size: 15929966592 Symlinks: /dev/disk/by-id/mmc-SL16G_0x8c9ed258-part1 /dev/disk/by-label/SD_CARD /dev/disk/by-partlabel/primary /dev/disk/by-partuuid/679ecb89-c2df-4e55-ac6a-e8be61e2709d /dev/disk/by-uuid/9019398f-1e38-4f69-bca4-6feb56d98ed7 UserspaceMountOptions: org.freedesktop.UDisks2.Filesystem: MountPoints: Size: 15929966592 org.freedesktop.UDisks2.Partition: Flags: 0 IsContained:false IsContainer:false Name: primary Number: 1 Offset: 1048576 Size: 15929966592 Table: '/org/freedesktop/UDisks2/block_devices/mmcblk0' Type: 0fc63daf-8483-4772-8e79-3d69d8477de4 UUID: 679ecb89-c2df-4e55-ac6a-e8be61e2709d 15:43:50.629: /org/freedesktop/UDisks2/block_devices/mmcblk0: org.freedesktop.UDisks2.PartitionTable: Properties Changed Partitions: /org/freedesktop/UDisks2/block_devices/mmcblk0p1 -- You are receiving this mail because: You are watching all bug changes.
[frameworks-solid] [Bug 467751] Unmounting certain SD cards can triggers an immediate remount when using "automount on attach" setting
https://bugs.kde.org/show_bug.cgi?id=467751 --- Comment #7 from Stefan Brüns --- (You likely have to run "eject" as root, e.g. via sudo. In case eject returns with a non-zero exit code, stracing it may reveal further information - "sudo strace -s 200 eject /dev/mmcblk0".) -- You are receiving this mail because: You are watching all bug changes.
[frameworks-solid] [Bug 467751] Unmounting certain SD cards can triggers an immediate remount when using "automount on attach" setting
https://bugs.kde.org/show_bug.cgi?id=467751 Stefan Brüns changed: What|Removed |Added CC||stefan.bruens@rwth-aachen.d ||e --- Comment #6 from Stefan Brüns --- "eject" in this context forces the card reader/drive to flush any pending operations from its caches. The timestamp based heuristic does not work in all cases, as a card reader will have a constant "TimeDetected" timestamp, and plugging a card into it will result in a significantly later "TimeMediaDetected". @ Alberto: Can you please provide the output of "udisctl monitor", when you run "/usr/bin/eject /dev/mmcblk0; echo $? "?. -- You are receiving this mail because: You are watching all bug changes.
[frameworks-solid] [Bug 467751] Unmounting certain SD cards can triggers an immediate remount when using "automount on attach" setting
https://bugs.kde.org/show_bug.cgi?id=467751 Bug Janitor Service changed: What|Removed |Added Status|CONFIRMED |ASSIGNED --- Comment #5 from Bug Janitor Service --- A possibly relevant merge request was started @ https://invent.kde.org/plasma/plasma-desktop/-/merge_requests/1454 -- You are receiving this mail because: You are watching all bug changes.
[frameworks-solid] [Bug 467751] Unmounting certain SD cards can triggers an immediate remount when using "automount on attach" setting
https://bugs.kde.org/show_bug.cgi?id=467751 --- Comment #4 from Bug Janitor Service --- A possibly relevant merge request was started @ https://invent.kde.org/frameworks/solid/-/merge_requests/128 -- You are receiving this mail because: You are watching all bug changes.
[frameworks-solid] [Bug 467751] Unmounting certain SD cards can triggers an immediate remount when using "automount on attach" setting
https://bugs.kde.org/show_bug.cgi?id=467751 --- Comment #3 from Alberto Garcia --- In case you want to give it a try with QEMU, here's a very simple test case: 1) Boot a VM with a virtual SD card reader, like this: -device sdhci-pci -device sd-card,drive=mmc0 -drive if=none,file=card.qcow2,id=mmc0 2) Add a partition to the SD card, no need to format it (you can use GPT or DOS/MBR, it doesn't matter). 3) Run `udevadm monitor` and in a different terminal run `eject /dev/mmcblk0` This is enough to see the udev events I mentioned earlier. The check that you describe seems fine (assuming that timeout is not too small). Thanks! -- You are receiving this mail because: You are watching all bug changes.
[frameworks-solid] [Bug 467751] Unmounting certain SD cards can triggers an immediate remount when using "automount on attach" setting
https://bugs.kde.org/show_bug.cgi?id=467751 Nate Graham changed: What|Removed |Added CC||n...@kde.org Status|REPORTED|CONFIRMED Ever confirmed|0 |1 Summary|Unmounting an SD card |Unmounting certain SD cards |triggers a remount |can triggers an immediate ||remount when using ||"automount on attach" ||setting --- Comment #2 from Nate Graham --- Can't reproduce with my card and card reader, FWIW. So I think it depends on the hardware's adherence to the spec, which underscores the flakiness here. Perhaps Solid can grow the ability to check for whether an unmounted volume immediately gets an "add" event from udisks, and ignore it if it's under a certain timeout. Say, 100ms. -- You are receiving this mail because: You are watching all bug changes.
